baber/WOPTO huggingface dataset:
Patent GB-670421-A (GB)
Title: Improvements relating to electrically conducting devices having a non-linear characteristic
IPC: H01L23/04
Filed: 1948-11-12
Abstract: 670,421. Dry contact rectifiers. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd., PETER, L. H., JENKINS, A., and GARROD, K. A. Oct. 12, 1949 [Nov. 12, 1948], No. 29416/48. Class 37. [Also in Group XXXV] An excess voltage limiter comprises dry contact rectifier elements 1, 2 arranged back - to - back and maintained in good contact with one another and with the terminal plates 4 for the lead-in wires 5 by the resilience of a rubber or like casing or yoke 11. The casing may be of moulded parts vulcanized together under stress around the elements; or the elements may be forced into a pre-formed casing. The plates 4 may be dispensed with and the wires 5 soldered directly to the elements.
Patent GB-319787-A (GB)
Title: Improvements in and relating to means for facilitating escape from and entry into submerged craft
IPC: B63G8/40
Filed: 1929-09-28
Abstract: 319,787. Belloni, A., Sept. 29, 1928, [Convention date]. Submarine escape chambers. - A double-door chamber for permitting access to or exit from a submerged or sunken submarine consists of partitions 1, 2, Fig. 1, built in the turret 3, and hinged doors or covers 4, 5. The tower 3 leads from a chamber 6 in which the crew assemble. The airpressure in the turret 3 is made equal to the hydrostatic pressure outside, and the doors 4, 5 are opened to afford continuous communication between the chamber 6 and the outside. In the modification shown in Fig. 2, the parts 7, 8 are formed of sheets such as sail cloth or waterproof material.
Patent GB-1454698-A (GB)
Title: Process for obtaining xylose
IPC: C13K13/00
Filed: 1974-04-18
Abstract: 1454698 Xylose from pentosan-containing materials SHOMEN SOKERI OSAKEYHTIO 18 April 1974 [25 April 1973] 29464/75 Divided out of 1454697 Heading C2S Xylose is obtained from a pentose-rich solution made by acid hydrolysis of a pentosancontaining raw material by (a) removing suspended solids by filtration; removing inorganic salts and a major portion of the organic impurities and colour by ion exclusion; removing the remaining colour and other impurities by treating the solution with an ion exchange resin and activated carbon; and fractionating the resulting solution, byion exchangechromatography to provide a highly pure xylose solution.
Patent GB-1313435-A (GB)
Title: Phenylhydrazone derivatives and the manufacture thereof
IPC: C07C251/86
Filed: 1971-06-23
Abstract: 1313435 Phenylhydrazone derivatives UPJOHN CO 23 June 1971 [13 July 1970] 29485/71 Heading C2C The invention comprises (α - fluoroalkyl)- benzoylchloride phenyl hydrazones of formula in which α-F n alkyl is an α-fluoroalkyl group of 1-3 carbon atoms; n is 2 or 3; X is halogen, C 1 -C 6  alkyl, α-F n alkyl or nitro; Y is halogen, C 1 -C 6  alkyl, α-F n alkyl or nitro; n<SP>1</SP> is 0 or an integer from 1 to 3; and m is 0 or an integer from 1 to 3; the sum of m and n<SP>1</SP> being not more than 5, the sum of carbon atoms in alkyl substituents being not more than 15, there being not more than one nitro group in the molecule and not more than two α-F n alkyl groups on any one benzene ring with a maximum of three such groups in the molecule. The hydrazone derivatives may be prepared by reacting a phenyl hydrazide of formula with phosphorus pentachloride to give a phenyl hydrazone derivative of formula and reacting this with phenol to give the required product. The hydrazone derivatives of the invention may be used as the active ingredients in antiarthropodal compositions. The compositions may be formulated as dusts, wettable powders, emulsifiable concentrates, aqueous dispersions, solutions and flowable creams and may contain conventional extenders and adjuvants.
Patent GB-305269-A (GB)
Title: Process for making reserves on wool and silk
IPC: D06P3/82
Filed: 1927-11-04
Abstract: 305,269. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Nov. 4, 1927. Colophony sulphonic acid is obtained by treating colophony, either alone or in the presence of an indifferent solvent, such as tetrachlormethane, with 20 per cent oleum or with chlorsulphonic acid, with cooling.
Patent GB-323814-A (GB)
Title: Improvements in or relating to the cooling of oil immersed electric transformers
IPC: H01F27/12
Filed: 1928-10-13
Abstract: 323,814. British Electric Transformer Co., Ltd., and Thompson, J. L. Oct. 13, 1928. Tanks with radiator elements.-The oil in an electrical transformer tank is cooled by devices adapted to fit over openings in the tank and having copper or aluminium fins 3 projecting into the oil and passages 6 through which cooling water is circulated by a pump. The devices may be ccnnected in series by a pipe 7, Fig. 2.
Patent GB-832987-A (GB)
Title: Improvements in or relating to boxes
Inventor: TOMLIN FREDERICK
IPC: B65D5/32
Filed: 1956-09-28
Abstract: 832,987. Boxes. FIELD, SONS & CO. Ltd. Aug. 6, 1957 [Sept. 28, 1956], No. 29622/56. Class 18. In a chick box with a flanged lid the corners of the outer side walls are bevelled, as are the corners of the flanged lid which overhang somewhat to allow passage of air. In one embodiment, the box comprises side walls 11, 12, end walls 13, 14 and corner walls 15, the end walls being bent up from the floor 16. Extensions 15a of the corner walls 15 (which are integral with the side walls) extend behind the end walls. A partition wall 18 having ventilation recesses 18b forks at bend lines 18c into separate portions 18d extending to the side walls at bend lines 18f from where they lie inside the outer walls as at 18g, having extensions 18h which abut the extensions 15a. The portions 18d slope downwardly, as at 18e to allow ventilation when the lid is in position, since these portions lie on opposite sides of ventilation holes 19 in each side wall. The various components are secured by any appropriate means. The detachable flanged lid has ventilation holes and its side and end walls are dimensioned to form a slight overhang at the bevelled corners. A pair of battens are secured to the box base, and the corner walls 15 have recesses 15b.
Patent GB-695483-A (GB)
Title: Synthesis of pantothenic acid-2 phosphate
Inventor: BADDILEY JAMES
IPC: C07F9/09
Filed: 1950-12-04
Abstract: Pantothenic acid 21-phosphate is obtained by reacting pantolactone-2-phosphate with an ester of b -alanine, e.g. the benzyl ester.  The reaction may be effected at about 100 DEG  C. and the pantothenic 21-phosphate isolated by way of one of its metallic salts.  The pantolactone-2-phosphate may be obtained by the phosphorylation of pantolactone with diphenyl-chlorophosphonate in a basic solvent such as pyridine.
Patent GB-1016576-A (GB)
Title: Optical maser
IPC: H01S3/14
Filed: 1963-07-26
Abstract: <PICT:1016576/C4-C5/1> An optical maser comprises an active medium of molecules which is excited so as to effect electronic transitions between a ground state and an excited state, the electron decay back to the ground state creating sufficient population inversions between the ground state vibrational levels to establish stimulated emission of radiation in the optical range.  The lower and upper curves in Fig. 1 show the potential energy of a molecule with ground state and excited state electrons respectively, the equilibrium positions of the nucleus being a and b. In the excited state those vibrational motions whose amplitudes extend near the ground state equilibrium position a are preferentially populated, as indicated by level distribution curve B. Electron decay from the excited state to the ground state causes certain ground state high energy vibrational levels to be substantially more populated than lower levels, as indicated by level distribution curve A.  This ground state population inversion produces the required optical radiation. Excitation of the molecules may be either visible or ultra-violet radiation.  The active material may be contained in the gaseous state in a rare gas such as Xenon, in which case the gas filled structure of Fig. 2 may be used with r.f. excitation from coils 4 and a barium fluoride output coupling plate 8 at the Brewster angle.  The output radiation is infra red and passes through a sapphire window 9. Alternatively, Fig. 3 (not shown), an electron stream from an axial electrode may pass through an accelerating grid to excite the gas before being collected or an electrode which may be on the inside of the envelope 1.  The inside of the envelope may be silver coated to increase the recombination of dissociated molecules. In another embodiment the active medium is embedded in a noble gas solid such as a Xenon crystal at one focus of an elliptical cylinder, an exciting optical source being provided at the other focus.  Suggested active materials are nitric oxide, nitrogen peroxide, methyl chloride, beryllium hydride, the O16O18 molecule of oxygen and deuterium hydride. As the required pumping frequency may be so high that it does not pass through the usual window materials, cascade pumping by an excited bound molecular state may be used to allow a more convenient pumping frequency. A suitable molecule for this purpose has an excited bound state approximately halfway up to the ionized state.
Patent GB-919110-A (GB)
Title: A method and a tool for providing a tube with outer conical threads
IPC: B21D41/02
Filed: 1959-09-02
Abstract: 919,110. Tube expanding; mandrels. FORS, F. G. Sept. 2, 1959 [Sept. 6, 1958], No. 29891/59. Class 83 (4). External cylindrical threads on a tube or tubular fitting 14 are deformed into conical threads by inserting into the tube a split collet 1 which is expanded by a mandrel 3 to expand the tube wall and the threads into conical shape. Three collet jaws 4, Fig. 5 (not shown), with tapered lower portions 7 are located in a carrier 2 and expanded by the conical end 10 of the mandrel 3 actuated by a press ram. The initial thread may be formed by screw cutting or rolling.
Patent GB-1094086-A (GB)
Title: Slide projector
IPC: G03B23/02
Filed: 1966-07-04
Abstract: 1,094,086. Slide changing apparatus. FRANKE & HEIDECKE G. m.b. H. [trading as ROLLEI-WERKE FRANKE & HEIDECKE]. July 4, 1966 [July 13, 1965], No. 29917/66. Heading G2J. The slide change drive in a projector has a hollow shaft 5 which makes one revolution for each slide-changing operation when engaged through pawl 7 with a ratchet wheel 2, constantly driven by concentric shaft 1, pawl 7 being mounted on a flange 4 fixed to shaft 5 and being disengaged from the ratchet when tail 18 abut tooth 9 of a pivotable pallet 11. When electromagnet 14 or manual means tilt spring-loaded pallet 11 clockwise, pawl 7 is released and shafts 1 and 5 rotate together once until the pawl is again tripped by a second tooth 10 which is offset from the plane of the pallet. Release of pallet 11 permits one further revolution until tooth 9 engages tail 18 again. Shaft 5 may rotate once only therefore independently of the duration of tilting the pallet 11.
Patent GB-599058-A (GB)
Title: An improved rotary contact device for the connection of electrical conductors
IPC: H01R39/64
Filed: 1945-11-09
Abstract: 599,058. Swivelling couplings. KRUGER, P. E. F. Nov. 9, 1945, No. 30020. Convention date, Aug. 18, 1942. [Class 38 (i)] In a swivelling coupling or other device wherein contact is to be made between two relatively moving surfaces, slip rings on one member have a peripheral groove such that the bottom and sides of this groove are engaged by brushes of very fine wire. Each brush may be as in Fig. 2 (not shown), so that it extends over a large proportion of the periphery of its slip ring. In the coupling shown in Fig. 1, a disc 3 of which one only is shown in detail, is provided for each wire 9 of a cable 1 and each of these wires has a bolt 7 to connect it to its appropriate wire brush 11 supported in a recess in its member 3 for engagement in the groove of its ring 5, the rings 5 being all keyed on a sleeve 13 relatively movable against disc 14 and each connected through a wire 15 and contact 18 to a wire 19 of cable 2.
Patent GB-414341-A (GB)
Title: Process for the manufacture of a fodder
IPC: A23K1/00
Filed: 1932-10-26
Abstract: As a substitute for the mixture of raw sugar with molasses or with invert sugar used in manufacturing the fodder described in the parent Specification, "filling material" or raw sugar alone or ground dried beet is employed.  The above mentioned materials with the addition of water if necessary are admixed with the ordinary granular supplementary fodders (for example, bran, oilcake meal, dried sugar beet solution, cocoa shells, rice fodder meal, ground beet with cattle salt blood meal, soya clippings and animal charcoal dust) at about 100 DEG  C., and the plastic material moulded in a suitable press.
Patent GB-468179-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J25/76
Filed: 1936-11-05
Abstract: 468,179. Electron multipliers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 5, 1936, No. 30166. Convention date, Nov. 5, 1935. [Class 39 (i)] The oscillatory circuit of an electron-oscillatory device having oppos ed secondary - emissior electrodes is constituted by the envelope, which has projecting portion: opposed surfaces of which serve as the secondary electrodes. In one form as shown, the envelope D is a copper sphere polished internally, anc carries projections T T<1> the end C, C<1> of which emit secondary electrons. A ring-shaped collector anode A is biassed positively, the lead being taken out through a potential node at F. The sphere D is earthed along the potential node-line. Magnetic polepieces N, S which may belong to permanent or electromagnets are arranged inside the tubes T, T<1>. The envelope may be cylindrical and a solenoid magnet coil may be used. In a modification the magnet is dispensed with and a grid anode used, biassed guard-rings being arranged about the surfaces C, C<1>, or a single wire may be arranged between spherically concave surfaces C, C<1>. The output is taken from a transformer TR, or from Lecher wires coupled at P<1>, P<1>, or between a point P and earth, or from a suitable point on the anode lead through a byepass condenser.
Patent GB-1515998-A (GB)
Title: Magnetic tape cassettes
IPC: G11B23/087
Filed: 1976-07-20
Abstract: 1515998 Tape cassette SONY CORP 20 July 1976 [23 July 1975] 30194/76 Heading B8M In order that a magnetic tape 32 runs parallel to an opening in a cassette housing so that it can be effectively engaged by a transducing head the cassette is provided with tape guides 52, 57, 54, 58 of which a first set of guides 52, 54 is moulded on to a first half 12a of the cassette housing and a second set of guides 57, 58 is moulded on to a second half 11a of the cassette housing such that the guides 52, 54 interleave with the guides 57, 58 whereby if the guides are bent inwardly of the cassette housing due to heat shrinking the tilt of the tape 32 in one direction will be compensated by a tilt in the other direction. The cassette includes pressure pads 42, 43 mounted on a leaf spring 61 which is supported by a mount 62 and spring guides 53, 56. Both halves of the cassette housing include projections on their interior sides which engage the tape 32 and prevent it from sticking to the side walls.
Patent GB-243764-A (GB)
Title: A device for the automatic opening and closing of tins
IPC: B67B7/00
Filed: 1925-11-30
Abstract: 243,764. Camel, F., (Assignee of Vanderschelden, L., Vanderschelden, E., and Draps, J.). Nov. 28, 1924, [Convention date]. Opening arrangements; fittings, internal.-Relates to holders or like devices for facilitating the opening of blacking or like tins. Several forms are described. Fig. 5 shows a casing formed of two parts hinged together, the parts being recessed at 4, 5, to receive the body and lid respectively. The recesses engage the tin very firmly, so that after inserting it in the device the lid is removed on opening the casing. The recesses may be lined with felt, rubber &c. Openings 6, 7, are to facilitate removal of the tin and also serve to show any inscription thereon. Stops 8, Fig. 6, or angular parts 10 and adjusting screws 9 may be provided in this type of holder to enable tins of different sizes to be dealt with. Fig. 7 shows a casing in which the lid and body of the tin are adapted to be gripped by hooked members 11 brought into engagement therewith on rotating a notched plate 12, Fig. 8, by means of a knob 14, Fig. 9 shows a holder comprising metal encircling loops 15, 16, provided with handles. The Specification as open to inspection under Sect. 91 (3) (a) describes a recessed casing, Fig. 12 (Cancelled), adapted to take several sizes of tins, the size of the recesses being adjustable by means of rotatable threaded rod members 18 operated by turning handles 19. A cranked opening lever 23 for forcing apart the parts of the casing is provided. This subject-matter does not appear in the Specification as accepted.
Patent GB-1089910-A (GB)
Title: Carrier assembly for a conveyor
IPC: B65G17/12
Filed: 1966-10-22
Abstract: 1,089,910. Endless conveyers. MATHEWS CONVEYER CO. Ltd. Oct. 22, 1964 [Nov. 5, 1963], No. 30262/67. Divided out of 1,089,909. Heading B8A. The whole of the subject-matter of the divided Specification is included in the parent Specification.
Patent GB-614411-A (GB)
Title: Improvements relating to hand forks, trowels and weed extractors
IPC: A01G1/12
Filed: 1945-11-13
Abstract: A garden hand fork, trowel, or weed extractor has the handle integral with the tool portion and the whole is constituted by a die casting of an aluminium alloy.
Patent GB-1496361-A (GB)
Title: Magenta-forming couplers for use in photography
IPC: C09B26/02
Filed: 1975-07-18
Abstract: 1496361 Pyrazoline colour couplers FUJI PHOTO FILM CO Ltd 18 July 1975 [18 July 1974] 30324/75 Heading C2C [Also in Division G2] A two-equivalent magenta-forming photographic coupler has the formula where A is a group obtained by the removal of a H from an active methylene group of a magentaforming coupler; R is optionally substituted alkyl, alkenyl, aryl or heterocyclic; and n is 1 or 2. A may be a 5-oxo-2-pyrazoline or pyrazolo-[2,3-a]benzimidazole coupler residue. The coupler may be prepared by forming a coupler having a monothio group at the coupling position by treating a coupler which is unsubstituted at the coupling position with a sulphenyl chloride in an inert solvent and then oxidizing the monothio group preferably with H 2 O 2 , sodium metaperiodate or manganese dioxide in an inert solvent at -10‹ to 100‹ C.
Patent GB-1235262-A (GB)
Title: Improvements in or relating to worm pumps
Inventor: SEEBERGER FRITZ
IPC: F04C2/107
Filed: 1969-06-16
Abstract: 1,235,262. Internally-meshing screw pumps. SEEBERGER K. G. MASCHINEN-UND GERATEBAU. June 16, 1969 [June 15, 1968], No. 30357/69. Addition to 1,181,193. Heading F1F. The pump disclosed and claimed in the parent Specification is improved or modified in that the stator 1 is additionally secured to the tubular body 2 by portions of the stator extending into holes 19 having enlarged ends 20. The body 2 may be hollow, Fig. 2, so that a cooling medium can flow therethrough by way of connections 17, 18, the holes 19 being formed in the inner wall 16 of the body. It is indicated that as on alternative portions of the body may extend into the stator.
Patent GB-900231-A (GB)
Title: Means for controlling axial loads on bolts or the like
IPC: F16B31/02
Filed: 1958-09-23
Abstract: 900,231. Washers. SPENCER, H. A. Sept. 23, 1958 [Oct. 4, 1957], No. 30388/58. Class 89 (1). The tensile stress in a bolt 1 when securing members 2, 4 together, is controlled by an aluminium, zinc, copper, magnesium, or lead plastically deformable washer 5. When the required stress has been reached, washer 5 is in the plastic state and deforms rapidly and also fuses with the adjacent surfaces. The outer surface of the washer may be anodized or painted, which coating cracks when deformed, or the washer may be surrounded by a ring of brittle material, e.g. metal, plastic, which ruptures when the washer deforms. In a modification, the washer has grooves 7, Fig. 6a, which deform when the required stress is reached.
Patent GB-927177-A (GB)
Title: Method for the temporary protection of amino groups
IPC: C07K1/06
Filed: 1959-09-07
Abstract: In the synthesis of peptides containing the arginyl radical <FORM:0927177/IV(a)/1> the guanidino-amino group is protected by reaction with an arylsulphonyl halide where-by one of the NG-hydrogen atoms is substituted by the arylsulphonyl radical; and the a -NH2 group is protected in the usual way by a radical which can be subsequently eliminated by hydrogenation.  In examples, Na -carbobenzoxy-L-arginine is reacted with p-toluenesulphonyl chloride to yield Na -carbobenzoxy-NG-tosyl-L-arginine, the carbobenzoxy group of which is then eliminated by hydrogenation, in the presence of a palladium catalyst, to give <FORM:0927177/IV(a)/2> -tosyl-L-arginine. This compound is reacted with p-(p1-methoxyphenylazo)- benzyloxy-carbonyl chloride (=MZ-chloride) to yield <FORM:0927177/IV(a)/3> - arginine, which is then reacted with the methyl ester of L-tryptophyl-glycine and dicyclohexyl-carbodi-imide to give <FORM:0927177/IV(a)/4> - tosyl- L-arginyltryptophylglycine methyl ester.  The MZ-group can be eliminated by catalytic hydrogenation, or by treatment with 3N-hydrogen bromide in glacial acetic acid.  The specification mentions that the guanidino-amino group may be protected by a naphthalene sulphonyl radical; and that the a -NH2 group may be protected by the p-nitro-carbobenzoxy radical, or the p-(p1-nitronaphthylazo)- benzyloxycarbonyl radical.
Patent GB-299462-A (GB)
Title: Improvements in or relating to explosives for use in mines containing "fire-damp" and like gases
IPC: C06B23/04
Filed: 1928-10-23
Abstract: 299,462. Segay, A. Oct. 27, 1927, [Convention date]. Explosives.-Relates to explosives containing ammonium nitrate, sodium or potassium chloride, and trinitronaphthalene, and consists in the use of a large proportion of trinitronaphthalene sufficient, to be completely burnt by the oxygen of the ammonium nitrate, and the addition to the mixture of potassium perchlorate or nitroglycerine or both. The nitroglycerine is gelatinized or an absorbent such as sawdust is added. A small part of the trinitronaphthalene may be replaced by trinitrotoluene. An example contains ammonium nitrate 59 per cent, sodium chloride 18 per cent, trinitronaphthalene 8 per cent, trinitrotoluene 5 per cent, and potassium perchlorate 10 per cent.
Patent GB-788258-A (GB)
Title: An improved method and apparatus for deodorising or disinfecting the atmosphere
Inventor: ARCHER FREDERICK GEORGE
IPC: E03D9/04
Filed: 1955-10-27
Abstract: 788,258. Disinfecting or deodorizing apparatus for water-waste-preventors. CALMIC, Ltd. July 23, 1956 [Oct. 27, 1955], No. 30716/55. Class 26. [Also in Group VI] A deodorizing or disinfecting container 1, primarily for use with a toilet installation, receives water or air through a connection 15 and expels air to the atmosphere through a discharge opening, a space enclosed by a cap 6 and slots 6a in the cap, the discharge of air being impeded by the discharge opening to render the rate of discharge relatively low until the ingress of water or air has resulted in the pressure of the air increasing to a value sufficient to cause the remaining discharge to occur as a puff. Discharge may be by means of a tube 13 of fine bore attached to a tube 9 closed by a gauze 10. The tube 13, carried by a plate 11, extends through a space enclosed by a collar 5 with holes 5a, for a pad 8 of volatile disinfecting or deodorizing material, its outlet being behind a non-apertured part of the cap 6. Water can enter the connection 15 through a tube 18 leading from a scoop in the flush-pipe ; air re-enters the container 1 with the exit of the water after the flush. The scoop may be adjustable in the flush-pipe to allow adjustment of the quantity of water it collects. Control of inflow is obtainable through a float-operated valve vertically guided within the container, the tubular part 9 and gauze 10 being then omitted. Discharge of air can be effected by supplying air to the container 15 from an air pipe leading from a separate container in a flushing tank, wherefrom air is displaced on flushing.